Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Both done.
beatiful solution
you can change the lambda (a,b) -> a + b to Integer::Sum for best preactices and readability. Good solution.
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Same issue here, using Java.
EDIT: Now submissions are showing the following,
Server Execution Error:
exec_failure
Request Error:
Request failed with status code 500
This error was caused due to an issue processing the web request, not because of an issue executing your code. You can retry the request.